Arnold, J.
Braun, M.; Lanz, C.
Lecture
2008
17. EVU Conference, Nice
Arnold, J.; Braun, M.; Lanz, C.: Forensic and Biomechanical Methods in Complex Accident Reconstruction – A Case Report. 17th EVU Conference, Nice 2008
English, 13 pages, 60 figures, 0 references
The results of the accident analysis of a complicated collision with three vehicles and two fatalities are presented in detail; the lesions of the two victims are discussed concerning their origin. An mportant aspect in accident reconstruction is to record and evaluate the damages on the involved vehicles or aircrafts. Often persons or obstacles are involved in such collisions. The contact areas and/or damages have to be recorded and evaluated as they contain essential information about the collision. The new developments in computing and in 3D-CAD, combined with modern optical methods, the so called Forensic 3D/CAD-supported Photogrammetry (FPHG) allow very detailed evaluation of the morphologic properties of such contact areas.
Of special interest is the morphologic match of “stamp” and “print”. With the use of FPHG, the possibility of the examination of such questions becomes independent of the physical access to the “bodies” and the evaluation can be done in the virtual space of a computer. This allows a thorough examination of the “match” in all three dimensions with high accuracy.
If in addition the found micro traces (paint, glass, fibres, plastics, DNA) are collected as evidence and examined with the available forensic methods, answers can be given with a high level of confidence and accuracy. On this evidence basis, the dynamic reconstruction of the accident could be done accurately, including the multiple impacts and complex movements.
The combination of classical methods of accident investigation with classical forensic methods and 3D-photogrammetry and 3D-scanning allows a new, efficient and thorough approach in the field of accident analysis. Combining these results with an analysis of the autopsy findings of the two victims from a biomechanical viewpoint, it could be concluded that both suffered mortal lesions while being hit at the same moment by the same car.
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